Anti-vibration Engineering in Internal Turning Using a Carbon Nanocomposite Damping Coating Produced by PECVD Process [Elektronisk resurs]

• Machining dynamic stability has been enhanced through a damping coating based on a novel carbon-based nanocomposite material. The coating was synthesized using a plasma enhanced chemical vapor deposition method, and deposited on to the round-shank boring bar used for internal turning and tested during machining. Comparisons between an uncoated and a coated boring bar were carried out at 0.25 mm and 0.5 mm depth of cut using a five times length to diameter ratio overhang, which are typical conditions known to generate detrimental mechanical vibrations. From sound pressure measurement it was found that the measured absolute sound level during process could be reduced by about 90% when using the tool coated with damping layer. Surface roughness measurements of the processed workpiece showed decreased Ra values from approximately 3-6 mu m to less than 2 mu m (and in 50% of the cases < 1 mu m) when comparing an uncoated standard tool with its coated counterpart. Moreover, it was found that the addition of an anti-vibration coating did not adversely affect other tool properties, such as rigidity and modularity. 

Ämnesord

Engineering and Technology  (hsv)

Mechanical Engineering  (hsv)

Applied Mechanics  (hsv)

Teknik och teknologier  (hsv)

Maskinteknik  (hsv)

Teknisk mekanik  (hsv)

Production Engineering, Human Work Science and Ergonomics  (hsv)

Produktionsteknik, arbetsvetenskap och ergonomi  (hsv)

Materials Engineering  (hsv)

Composite Science and Engineering  (hsv)

Materialteknik  (hsv)

Kompositmaterial och -teknik  (hsv)

Fluid Mechanics and Acoustics  (hsv)

Strömningsmekanik och akustik  (hsv)

Nano Technology  (hsv)

Nanoteknik  (hsv)

Natural Sciences  (hsv)

Physical Sciences  (hsv)

Fusion, Plasma and Space Physics  (hsv)

Naturvetenskap  (hsv)

Fysik  (hsv)

Fusion, plasma och rymdfysik  (hsv)

Järnvägsgruppen - Ljud och vibrationer  (kth)

Järnvägsgruppen - Ljud och vibrationer  (kth)

SRA - Production  (kth)

SRA - Produktion  (kth)

Indexterm och SAB-rubrik

chatter

machining

vibration damping

coating

PECVD

HIPIMS

metal matrix composite

carbon nanocomposite